Solutions by everydaycalculation.com
1030 - 710 is -1130.
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Related: 20/30-7/10 10/30-14/10 10/60-7/10 10/30-7/20 10/30-21/10 10/90-7/10 10/30-7/30 50/30-7/10 10/30-35/10 10/30-7/50 70/30-7/10 10/30-49/10 10/30-7/70
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